Description:The Royal Duet is a beautiful, textured glass dildo that can be used for masturbation (with either end) or for female/female double-penetration. The small diameter really allows for the swirled and nubbed texture of this sex toy to really shine. The smooth surface of the glass requires very little lubrication for use, and the quality production of this glass dildo means that this in an investment that will last for years to come.